Jabez edwakds



@uiten gisten @anni @frn` JABEZ EDWARDS, yo rV LOWELL, MASSACHUSETTS;

i Letters Patent No. 71,369, dated November 26, `1867.

, IMPROVEMENT IN BELT-SHIFTER FOR ROVING-MAINES.- l

TO ALL WHOM IT MAY GONCERN: p p i Be it knownthut I, JABEZ EDWARDS, of Lowell, in the county of Middlesex., and StuteofMassachusettspp p p have'invented new and useful Improvements in Rovimg-Machinery;` and I do hereby declarethatthe following i` 1 is a full lund'exact' description thereof, reference being had to the accompanying drawings, and to the letters1 i l. i ofY reference marked thereon. v i V, i p The nature of my invention consists in providing for roving-inachiuery a device which operates `directlyf` f on the cone-belt7 whereby the rateat which the roving is wound onthebobhins, asit passes from the rollersj ,i p may be instantly controlled and adjusted. v Y i u To enable others skilled in the art to make and use my invention, I will proceed to describe its construction p i i l and operation. A

Figure l represents a side elevation o f u part of a roving-machine with my` improvement attached. p p Figure 2 represents s. section through A and B of iig. 1. i Similar letters in the different figures indicate corresponding parts. i i p a a represent parts of the framework of a roving-machine, which are connected and held by `the rods `5, 6,; ,and e. f is the driving-cone, which connects with the driven-cone g by the belt i, the cone g being attached i i to and running in the frame z', which is hung and swings on the rod e. is the beltguide, which slides on thej` i p i rods Vb and e. Through the plate of thebelt-guide7- the inclined slot Z is made@ mis the sliding plate,which 1 i slides on the rod b. Through this-plate m the inclined slot lc is made, the reverse'from the slotin the plate of thebeltguidej; or these slots l and c in the plates may be, one of them vertical and the other inclined, which, i 1 would accomplish the same results. Attached to the plate m is the rack n, which slides bachL and forth throughi t i a socket or bearing, and is held and controlled by the latch o. There is also attached tothe plate `m a cord or` chain which passes over a pulley, and to which is suspended Vthe weight p. The obj-ect of this weight is,`when f the latch o is disengaged from a toothon the rack n, t`o draw the plate m forward, and with it the rack to v the next succeeding tooth. Any other device may be used in place of the rack n, latch o, and weightthatl p p will give the same movement to thc plate m. q is the regulating-rod, which is hung by means of a. pvotedl i l bearing at one end. The other end` is adjustable, and is held by the screw r, `which secures itto the slottedi stand s in the required position. y Sliding freely oniths rod q is the stud-slide@ which is providedwith a stud il u, passing through the inclined slots l and,k,'and is secured in such manner as `to allow it to move up or down 1` freely in the slot-s. f

I In all rovingmachinesit is of the utmost importance thatthe speed of the bobbins should `be so adjusted,"` i, to that of the rollers as to wind the roving` on the bobbins at the same rate at which `the rollers deliver `it. It"

the speed ofthe bobbiu is such that it doesnot windit fast enough, it becomes entangledfor if too fast, strctchsa/K"1' ing of the roving is the eiect, making it too tine and uneven. In either case breakage `is likely .to` occur. "As

the diameter of the bobbin increases while filling, there must bc a corresponding change in its relative speedot` every layer of roving, or it will not take up the roving at a uniform rate. To` produce the required changes V i of the speed of the bobbins, there are generullyusedtwo cones or conical drums, one of them running ata uni.

form rate of speed and driving the other, by means of a. belt passing ovcrboth, which maybe so guided on the cones as to produce any required speed'of the driven-cone and also the bhbbins,jat the same time, as` they are p, connected to and controlled by the driven-cone by means of gears. To guide andcontrol the belt, which should l be moved towards the-larger end of the driven-conc as each successive layer off-roving is `wound on the bobbins, 1 1 n there is a belt-guide, to which is attached a weight Vby means of, a oord or chain, which, `passing over u pulley,"l serves to draw it forward in the proper direction. There is also attached to theibelt-guide a rack with clutch; y which, by taking into the teeth of the rack, serves to retain it in its proper place. The teethof the rack should ip be at such distances apart thatwhen a layer of roving is wound on thc'bobbins,-ond the latch is disengaged.. i

vfrom one tooth, and thc weight moves the rack forward until tlie next' succeeding tooth comes in contact with the latch, it will guide the belt on the concs, so as to give to the bobbins the speed required to winden the.V

`next layer at the proper rate. It frequently h`appcns thnt from changesin the amount of dampuess in `the .p i

atmosphere, and also from other causes, the sume kind of roving will not always increase the diameter offfj the bobbins at the sume rate. When thc atmosphere is damp it so affects the fibres of ltlie cotton that it Will .wind more compactly on the bobbins than when dry, and consequently it `.vill not fill the bobbins so fast in a y damp as in a dry atmosphere. The consequence is that unless a. corresponding change. is mode in the machine,

-thebobbins will not wind up the roving fast enough in dann-p weather, thus allowing it to become loose and entangled, or winding it too fast in dry weather stretch or breek it. It is therefore of great importance thatl when any of these changes occur, the rate `at which the belt is moved by the belt-guide on the cones should be soA changed as to give that speed to the bobbins by which theywillwind up the roving at the proper rate.

In the various kinds of roving-machines, as they are at present constructed, there are several devices for making the required changes, all attended with considerable inconvenience and loss of time. They also do not -admit of so nice and exact an adjustment as is desirable.

With my device the required change maybe readily produced by simply moving the adjustable end of the rod q. When the rod q' is parallel with vthe rod b, the belt-guide j and plate m both move at the same rate. When it is required that the belt-guidej shall move 'at a. slower rate thanth'e plate m, by lowering the adjustable end of the rod q the stud-'slide t5 as it Vmoves towards the adjustable end of the rod q, draws the stud u downward, which, by its action in the slots Z and la, produces the required ed'ect. i By raising the adjustable end lof the rod q, the opposite e'ect is produced, causing the belt-guide j to move at a. greater rate than the plate m. The slots Zand. c may be inclined in the opposite direction; and by moving the rod q in the opposite direc tion the same yresult is obtained as above. By this device the adjustment may be e'ected to any degree of exactness, as the e'ect produced on the belt-guidej is in exact proportion to the amount that the end of the rod q is moved. y v y What I claim as my invention, and desire to secure by Letters Patent, isy 1. I claim the plate m and belt-guide plate j, with inclined slots or their equivalents, substantially as and forthe purpose set forth. Y

2. I claim the rod g' and stud-slide t, with stud u, for the purpose substantially as herein described.

8. I claim the combination andrarrangement of the plates m and j, with inclined slots -c and l, or their equivalents, rod a, and stud-slide t, with stud u, when operating substantially for the purpose described ,and

set forth.

JABEZ EDWARDS.

Witnesses.

.ABI'EL IEvEY,

Guo. E. PEVEY. 

